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Finding the Fourth Proportional to 703,153.80, 970,352.52 and 380,862.88

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Solution

The fourth proportional to 703,153.80, 970,352.52 and 380,862.88 is: 525,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,153.80 : 970,352.52 = 380,862.88 : x
  2. Step 2: Convert to fraction form
    703,153.80/970,352.52 = 380,862.88/x
  3. Step 3: Cross multiply
    703,153.80x = 970,352.52 × 380,862.88
  4. Step 4: Simplify right side
    703,153.80x = 369,571,255,382.46
  5. Step 5: Solve for x
    x = 369,571,255,382.46/703,153.80
  6. Step 6: Final answer
    x = 525,590.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.